Match each turning quantity to its rule

Exercise and reference answers

Matching pairs

1. Left

   Rotation angle

   Right

   Arc length divided by radius of curvature

2. Left

   Angular velocity

   Right

   Rotation angle divided by time taken

3. Left

   Tangential speed

   Right

   Radius times the angular velocity

4. Left

   Centripetal force

   Right

   Mass times centripetal acceleration

5. Left

   One radian

   Right

   About 57.3 degrees of turn

6. Left

   One revolution

   Right

   Two pi radians of rotation angle

Instructions

Tap a turning quantity, then tap the expression that defines it.

Explanation